National Item Identification Number

01-091-4374
010914374
5305-01-091-4374
5305010914374

National Stock Number

Item Name

SCREW,EXTERNALLY RELIEVED BODY

Federal Supply Class

5305

Description

An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). It is No. 0 (0.060 IN.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below No. 10 (0.190 IN.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also BOLT, EXTERNALLY RELIEVED BODY and BOLT, INTERNAL WRENCHING.

Commercial and Government Entity Code (Supplier Data)

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0PN68

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AMPEX DATA SYSTEMS CORPORATION
1228 DOUGLAS AVE
REDWOOD CITY
CA
94063
650-367-3540

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09150

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AMPEX DATA SYSTEMS CORP
COMPUTER PRODUCTS DIV
200 N NASH ST
EL SEGUNDO
CA
90245
213-416-1432

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Reference Numbers (Part Numbers)

3137976-01
3137976-01

Required Categories

THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR

Required Description

UNC
0.086 INCHES
56
2A
RIGHT-HAND
0.177 INCHES NOMINAL
0.257 INCHES NOMINA